JPS6222374A - Method for starting pressure-type fuel cell - Google Patents

Method for starting pressure-type fuel cell

Info

Publication number
JPS6222374A
JPS6222374A JP60160701A JP16070185A JPS6222374A JP S6222374 A JPS6222374 A JP S6222374A JP 60160701 A JP60160701 A JP 60160701A JP 16070185 A JP16070185 A JP 16070185A JP S6222374 A JPS6222374 A JP S6222374A
Authority
JP
Japan
Prior art keywords
gas
pressure
temperature
fuel cell
compressed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP60160701A
Other languages
Japanese (ja)
Inventor
Sanehiro Furukawa
古川　修弘
Shuzo Murakami
修三 村上
Masato Nishioka
正人 西岡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP60160701A priority Critical patent/JPS6222374A/en
Priority to US06/886,497 priority patent/US4680240A/en
Priority to CN86104867A priority patent/CN1008856B/en
Publication of JPS6222374A publication Critical patent/JPS6222374A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/02—Details
    • H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
    • H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
    • H01M8/04225—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during start-up
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
    • H01M8/04302—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/04365—Temperature; Ambient temperature of other components of a fuel cell or fuel cell stacks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04388—Pressure; Ambient pressure; Flow of anode reactants at the inlet or inside the fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04395—Pressure; Ambient pressure; Flow of cathode reactants at the inlet or inside the fuel cell
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H01M8/04425—Pressure; Ambient pressure; Flow at auxiliary devices, e.g. reformers, compressors, burners
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04753—Pressure; Flow of fuel cell reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04768—Pressure; Flow of the coolant
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04746—Pressure; Flow
    • H01M8/04776—Pressure; Flow at auxiliary devices, e.g. reformer, compressor, burner
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
    • H01M8/2457—Grouping of fuel cells, e.g. stacking of fuel cells with both reactants being gaseous or vaporised
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H01M8/04119—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Manufacturing & Machinery (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Medical Informatics (AREA)
  • Fuzzy Systems (AREA)
  • Evolutionary Computation (AREA)
  • Health & Medical Sciences (AREA)
  • Automation & Control Theory (AREA)
  • Artificial Intelligence (AREA)
  • Fuel Cell (AREA)

Abstract

PURPOSE:To facilitate control of a pressure-type fuel cell during its starting and prevent any deterioration of the fuel cell by increasing its temperature by circulating heated gas and increasing the internal pressure by supplying a compressed inactive gas and maintaining the volume of a phosphoric acid electrolyte at an allowable level by controlling the partial steam pressure of the compressed N2 gas. CONSTITUTION:During starting of a pressure-type fuel cell, steam is fed through a heat exchanger 5 to gradually heat a gas circulating through the gas path (C) of a stack 1 until the temperature of the gas reaches a rated level. At the same time, compressed N2 gas is fed into gas chambers (P) and (N) and a pressure case (V) to gradually increase the internal pressure of the stack 1 and the pressure case (V) to a rated level. During the above step of increasing the temperature and the pressure, the temperature of the stack 1 and the internal pressures of the gas chambers (P) and (N) are detected. Then, the detection results are input to a controller 12 and as the result a proper amount of steam is added to the compressed N2 gas supplied to the gas chambers (P) and (N) by controlling the opening of valves 13 and 14 to control the partial steam pressure of the compressed N2 gas (N) in order to adjust the volume of a phosphoric acid electrolyte to an allowable level. Normal electric discharge is started when the temperature and the pressure reach the rated levels.

Description

【発明の詳細な説明】 何）　産業上の利用分野 本発明は燃料電池特に加圧式燃料電池の起動方法に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention: Field of the Invention The present invention relates to a method for starting a fuel cell, particularly a pressurized fuel cell.

（ロ）従来の技術 燃料電池の起動に際し、電池反応熱による昇温（負荷昇
温）を行い定格点（規定作ｌＩＩ温度）ｔＣ達して後、
正規の放電を開始するが、加圧下で作動させる電池では
更に規定作動圧力まで昇圧を行う必要がある。この場合
連続的に変化する操作パラメータ（電池スタック温度、
圧力、反応ガスの供給量及び水蒸気圧、放電電流など）
が多いために制御が難かしく、また各操作パラメータ間
のマツチングがとれておらず１電池は適正に制御されて
いなかった・ その為電池が苛酷な条件（電解液量の増減・対極間の差
圧の増大など）＆Ｃ曝される場合も生じ、電池特性の劣
化をはじめとして電池寿命を縮める一因となっていた。(b) Conventional technology When starting up a fuel cell, the temperature is raised by the heat of cell reaction (load temperature raised) and after reaching the rated point (standard production III temperature) tC,
Normal discharge begins, but if the battery is operated under pressure, it is necessary to further increase the pressure to the specified operating pressure. In this case continuously changing operating parameters (cell stack temperature,
(pressure, reaction gas supply amount and water vapor pressure, discharge current, etc.)
Because of the large number of (e.g., an increase in pressure) and C exposure, which caused deterioration of battery characteristics and shortened battery life.

Ｇ−１発明が解決しようとする問題点 この発明は加圧式燃料電池の起動時における前記操作パ
ラメータの数を減らして簡単且適正な制御を行うことに
より、電池特性の劣化を防止するものである。G-1 Problems to be Solved by the Invention This invention prevents deterioration of cell characteristics by reducing the number of operating parameters and performing simple and appropriate control during startup of a pressurized fuel cell. .

（ロ）問題点を解決するための手段 この発明は加圧式燃料電池の起動に際し、負荷昇温を行
うことなく定格点（規定作動温度及び圧力）まで加熱ガ
スの循環による昇温及び加圧不活性ガスの供給による昇
圧を行い、この昇温・昇圧過程において電池スタック温
度と圧力に応じて、前記加圧不活性ガスの水蒸気圧を制
御し、燐酸電解液の体積を許容値内に維持するものであ
る。(b) Means for Solving the Problems This invention provides for raising the temperature and pressurization by circulating heated gas to the rated point (specified operating temperature and pressure) without increasing the load temperature when starting a pressurized fuel cell. The pressure is increased by supplying an active gas, and during this temperature and pressure increase process, the water vapor pressure of the pressurized inert gas is controlled according to the battery stack temperature and pressure, and the volume of the phosphoric acid electrolyte is maintained within an allowable value. It is something.

（ホ）効　果 この発明によｎば、起動点より定格点の間ｉ全く放電を
行はないので、反応ガス流量、放電電流、反応生成水な
ど放電に伴う操作パラメータを考慮する必要がなく、単
に各ガス室に供給さｎる不活性ガスへの水蒸気添加量を
電池スタック温度と圧力に応じて調節することにより電
解液の体積をはソ一定に保つことが可能となり、起動時
の制御が容易で電池の劣化も防止さｎる。(e) Effects According to the present invention, since no discharge is performed between the starting point and the rated point, there is no need to consider operational parameters associated with discharge such as reaction gas flow rate, discharge current, and reaction product water. By simply adjusting the amount of water vapor added to the inert gas supplied to each gas chamber according to the battery stack temperature and pressure, the volume of the electrolyte can be kept constant, making it possible to control the startup time. is easy and prevents battery deterioration.

（へ）実施例 圧力容器（至）に収納さｎた電池スタック［１１は、単
蝿位セルとガス分離板とを交互に多数積重し、数セル毎
に冷却板を介在させて構成されるが、図面隻では空気極
と燃料極の各供給ガス室（巧（Ｎ）及び冷却ガス通路（
０）をもつ模型図として示されている・スチームリフオ
ーイ（３］とシフトコンノ（−夕＋４１よりなる燃料処
理装置（２）は、天然ガス、メタンなどの燃料を加圧下
で改質、転化し、燃料ガス（水豪リッチガス）を生成す
る。この加圧燃料ガスは、過剰の水蒸気を凝ｗｉ器（図
示せず）で大部分除湿さｎて後燃料極ガス！（褐へ供給
さｎ、空気極ガス室（巧に供給される加圧空気との間で
電池反応が行はｎる。このとき各ガス室（川（巧の圧力
は夫々パルプ（７）（７１’及ヒ＋８１＋８）’ｔ”制
御すｎ、ル。電池Ｕ１８０−１９０℃の作動温度に維持
すべく煕交換器（５）及びプロワ（６）を経て冷却ガス
通路（６）に流ｎる循環冷却ガスで？ｆ！ｒ却さｎる。(F) Example A battery stack [11] housed in a pressure vessel (to) is constructed by stacking a large number of single cells and gas separation plates alternately, with a cooling plate interposed between every few cells. However, in the drawing, each supply gas chamber (N) and cooling gas passage (N) of the air electrode and fuel electrode are
The fuel processing device (2), which is shown as a model diagram with a steam refill (3) and a shift converter (-41), reforms and converts fuels such as natural gas and methane under pressure. , a fuel gas (hydrogen-rich gas) is produced. This pressurized fuel gas is mostly dehumidified to remove excess water vapor in a condenser (not shown) and then supplied to the anode gas (water rich gas). The battery reaction takes place between the air electrode gas chamber (Takumi) and the pressurized air supplied to it. t'' control with circulating cooling gas flowing into the cooling gas passage (6) via the exchanger (5) and blower (6) to maintain the battery U at an operating temperature of 180-190°C. I will be rejected.

圧力容器（９）内は各反応ガス室（Ｐ）＠と同圧に維持
すへく、加圧窒素ガスがパルプ＋９１　＋ｓｆの調節に
エフ封入さｎている。The inside of the pressure vessel (9) is maintained at the same pressure as each reaction gas chamber (P), and pressurized nitrogen gas is sealed to adjust the pulp +sf.

以下本発明による加圧式燃料電池の起動法について詳細
に説明する。Hereinafter, a method for starting a pressurized fuel cell according to the present invention will be explained in detail.

電池の運転停止時、両反応ガスの供給を停止しついで常
圧Ｎ２ガスをガス室（Ｉ’）（Ｎ）に供給し１反応ガス
を常圧下のＮ２ガスで置換（窒素ガスパージ゛゛）シて
後、休止状態に入っている。When the battery is stopped, the supply of both reaction gases is stopped, and normal pressure N2 gas is supplied to the gas chambers (I') and (N) to replace one reaction gas with N2 gas under normal pressure (nitrogen gas purge). After that, it goes into hibernation mode.

電池の起動に際し、電池運転時のスタック冷却とは逆に
熱交換器（６１にスチームを通し、スタック１１）のガ
ス通ｗ！ｒ（０）Ｋ循環するガスを加熱してスタックｆ
ｉｌが定格温度に達するまで除々に昇温を行う。When starting up the battery, contrary to stack cooling during battery operation, gas is supplied to the heat exchanger (by passing steam through 61 and stack 11)! r(0)K Heating the circulating gas to stack f
The temperature is gradually increased until il reaches the rated temperature.

これと同時にＮ！ガス供給パルプＵα（１１）を開いて
加圧恥ガス（乾燥状態）をガス室（カ（８）に供給する
と共にパルプ＋９１＋ｉｌ＋を兆いて圧力容！！（Ｖ）
Ｋ加圧Ｍ！ガスを供給し、スタック（１）及び圧力容器
（７）内を定格圧力まで徐々に昇圧する。At the same time, N! The gas supply pulp Uα (11) is opened to supply pressurized gas (dry state) to the gas chamber (Ka (8)), and the pulp +91+il+ is supplied to the pressure chamber!! (V)
K pressurize M! Gas is supplied and the pressure inside the stack (1) and pressure vessel (7) is gradually increased to the rated pressure.

この過湿・過圧過程において、スタック温度を熱電対（
Ｔ）で又ガス蚕研側帷の圧力を検出器（図示せず）で検
出して制御器α２１に入力し、所定の演算を行い燐酸電
解液の体積が許容値内となるよう制御信号を水蒸気添加
用のパルプαｇｌ（１４に与えてその開度を調節しガス
室（巧（（支）に夫々供給される加圧Ｍ！り乾燥したり
しないので、その体積がはｙ一定とたって許宛値囚に細
鵡イ引λ 定格温度・定格圧力に到着すれば、各反応ガスパルプ（
ｙｌ（７’ｌ及び（８１（ｌＥ’ｌを開いて後、加圧Ｎ
２ガスの供給パルプ＋１０１　（ｎ）及び水蒸気添加用
パルプ（１ｍ　［１４）を閉じ。During this overhumidity/overpressure process, the stack temperature is measured by a thermocouple (
At T), the pressure of the gas lab side cloth is detected by a detector (not shown) and inputted to the controller α21, which performs a predetermined calculation and sends a control signal so that the volume of the phosphoric acid electrolyte falls within the allowable value. Pulp αgl (14) for water vapor addition is applied to adjust its opening degree, and pressurized M is supplied to the gas chambers (supports) respectively.Since it is not dried or dried, its volume is allowed to remain constant. When the rated temperature and pressure are reached, each reaction gas pulp (
After opening yl(7'l and (81(lE'l), pressurize N
Close the 2 gas supply pulp +101 (n) and the steam addition pulp (1 m [14).

加圧燃料ガス及び加圧空気を夫々各ガス室（Ｎ）（Ｐ）
に供給し、正規の放電を開始する。Pressurized fuel gas and pressurized air are supplied to each gas chamber (N) (P) respectively.
and start regular discharge.

（ト）効　果 反応ガス流量、放電電流、反応生成水など放電にｔ伴う
パラメータを考慮する必要なく、里に電池の塩度と圧力
に応じて不活性ガスの水蒸気圧を調節することにより、
電解液の体積をはソ一定に維持することが可能となり、
起動時の制御が容易で電池の劣化も防止さｎる―(g) Effect: By adjusting the water vapor pressure of the inert gas according to the salinity and pressure of the battery, there is no need to consider parameters associated with discharge such as reaction gas flow rate, discharge current, and reaction product water.
It becomes possible to maintain the volume of the electrolyte constant,
Easy control during startup and prevents battery deterioration.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明法を説明するための燃料電池システムブロ
ック図である。 ＋１１・・・電池スタック、［２）・・・燃料処理装置
、叫、（１１）−・加圧Ｎ！ガス用パルプ、（Ｉ３、α
４−・水蒸気添加パルプ、（Ｐ）−・・空気極ガス室、
（ｎ）−・・姑料極ガス室、（ｏ）−冷却（加熱）ガス
通路、（Ｖ）−・圧力容器、（Ｔ）・・・熱電対。The drawing is a block diagram of a fuel cell system for explaining the method of the present invention. +11...Battery stack, [2)...Fuel processing device, shout, (11)--Pressure N! Gas pulp, (I3, α
4-・Steam-added pulp, (P)-・Air electrode gas chamber,
(n)--Full electrode gas chamber, (o)--Cooling (heating) gas passage, (V)--Pressure vessel, (T)--Thermocouple.

Claims (1)

【特許請求の範囲】[Claims] （１）電池の起動に際し、電池反応熱による昇温（負荷
昇温）を行うことなく、定格点（規定作動温度及び圧力
）まで加熱ガスの電池スタックへの循環供給による昇温
及び加圧不活性ガスの各極ガス室への供給による昇圧を
行い、前記昇温昇圧過程において、前記電池スタック温
度と前記ガス室圧内を検出して、燐酸電解液の体積が許
容値内に維持されるよう、前記加圧不活性ガスの水蒸気
圧を制御せしめることを特徴とする加圧式燃料電池の起
動方法。(1) When starting up the battery, heating gas is circulated to the battery stack until it reaches the rated point (specified operating temperature and pressure) without raising the temperature due to battery reaction heat (load temperature raising). Pressure is increased by supplying active gas to each electrode gas chamber, and in the temperature and pressure increase process, the temperature of the battery stack and the pressure within the gas chamber are detected to maintain the volume of the phosphoric acid electrolyte within an allowable value. A method for starting a pressurized fuel cell, comprising controlling the water vapor pressure of the pressurized inert gas.
JP60160701A 1985-07-19 1985-07-19 Method for starting pressure-type fuel cell Pending JPS6222374A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP60160701A JPS6222374A (en) 1985-07-19 1985-07-19 Method for starting pressure-type fuel cell
US06/886,497 US4680240A (en) 1985-07-19 1986-07-17 Method for starting fuel cell power systems
CN86104867A CN1008856B (en) 1985-07-19 1986-07-19 Method for starting fuel cell power systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60160701A JPS6222374A (en) 1985-07-19 1985-07-19 Method for starting pressure-type fuel cell

Publications (1)

Publication Number Publication Date
JPS6222374A true JPS6222374A (en) 1987-01-30

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ID=15720600

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Application Number Title Priority Date Filing Date
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Country Status (3)

Country Link
US (1) US4680240A (en)
JP (1) JPS6222374A (en)
CN (1) CN1008856B (en)

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Also Published As

Publication number Publication date
CN86104867A (en) 1987-08-05
CN1008856B (en) 1990-07-18
US4680240A (en) 1987-07-14

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